4.00 mL of 2.00 M aqueous NaOH is added to 100.0 mL of 0.200 M aqueous NaHSO4, all initially at 25.0 — Thermodynamics Chemistry Question

4.00 mL of 2.00 M aqueous NaOH is added to 100.0 mL of 0.200 M aqueous NaHSO₄, all initially at 25.00 °C, in a well-insulated flask. Neglecting the effects of dilution, and assuming that volumes are additive and that all solutions have the same density and specific heat capacity as pure water, what is the final temperature of the mixture?